Kohler 28EFKOZD Installation

TP-7045 3/18c68 Section 9 Paralleling Generator Sets
Step Potential Cause Explanation Troubleshooting
Fault: Bus Sensing Phases A and B are Reversed
1 The bus sensing for
phase A is connected to
phase B of the
paralleling bus and vice
versa
Phase angle from generator to bus is about
180_ and bus rotation is backwards.
Verify wiring between bus sensing inputs
and load side of paralleling breaker.
2 The wiring between the
generator and the
paralleling breaker is
incorrect
Phase angle from generator to bus is about
180_ and bus rotation is backwards.
Verify wiring between generator and
paralleling breaker.
3 The generator metering
is not connected
correctly
Phase angle from generator to bus is about
180_ and bus rotation is backwards.
Verify metering connections on the
generator. L1 should connect to the
phase A output lead. L2 to phase B, L3 to
phase C, L0 to neutral.
Fault: Bus Sensing Phases B and C are Reversed
1 The bus sensing for
phase B is connected to
phase C of the
paralleling bus and vice
versa
Phase angle from generator to bus is about
--120_ and bus rotation is backwards.
Verify wiring between bus sensing inputs
and load side of paralleling breaker.
2 The wiring between the
generator and the
paralleling breaker is
incorrect
Phase angle from generator to bus is about
--120_ and bus rotation is backwards.
Verify wiring between generator and
paralleling breaker.
3 The generator metering
is not connected
correctly
Phase angle from generator to bus is about
--120_ and bus rotation is backwards.
Verify metering connections on the
generator. L1 should connect to the
phase A output lead. L2 to phase B, L3 to
phase C, L0 to neutral.
Fault: Bus Sensing Phases C and A are Reversed
1 The bus sensing for
phase A is connected to
phase C of the
paralleling bus and vice
versa
Phase angle from generator to bus is about
120_ and bus rotation is backwards.
Verify wiring between bus sensing inputs
and load side of paralleling breaker.
2 The wiring between the
generator and the
paralleling breaker is
incorrect
Phase angle from generator to bus is about
120_ and bus rotation is backwards.
Verify wiring between generator and
paralleling breaker.
3 The generator metering
is not connected
correctly
Phase angle from generator to bus is about
120_ and bus rotation is backwards.
Verify metering connections on the
generator. L1 should connect to the
phase A output lead. L2 to phase B, L3 to
phase C, L0 to neutral.
Fault: Bus Sensing Not Connected
1 No wires connect the
bus sensing on the
generator to the load
side of the paralleling
breaker
Wiring not connected between load side of
the paralleling breaker and the bus
metering.
Verify that the bus sensing is connected.
2 No leads connect the
generator output to the
line side of the
paralleling breaker
The leads connecting the output of the
generator to the paralleling breaker are not
connected.
Verify that the leads connecting the
generator to the paralleling breaker are
connected.
3 The line circuit breaker is
open
The line circuit breaker (at the generator) is
open, disconnecting the output from the
generator from the line side of the
paralleling breaker.
Verify that the line circuit breaker is closed.

Kohler 28EFKOZD Specifications

General

Brand	Kohler
Model	28EFKOZD
Category	Portable Generator
Language	English